The symbols show a specific lane's traffic condition: a green arrow for a lane flowing freely, a yellow arrow or yellow "X" for a slow lane, and a Red "X" for a lane that is shut down.
这些标志用于指示特定车道的交通情况：绿色箭头表示通行，黄色箭头或黄色的“X”表示慢行，而红色的“X”表示该车道禁止通行。
She thought it was safer to stay with the slow traffic; but then she heard a voice (" not out loud, but in my mind ") telling her to get in the fast lane.
她本来认为随着缓慢的车流一起慢慢前行会比较安全，但她那时突然听到了一个声音(“不大，但却清楚地进入头脑中”)告诉她驶入快车道。
This paper has studied the effect of a slow-moving vehicle on traffic flow in a two-lane two-way road.
本文对双向双车道上慢行车行驶对交通的影响进行了分析研究。
This paper has studied the effect of a slow-moving vehicle on traffic flow in a two-lane two-way road.
本文对双向双车道上慢行车行驶对交通的影响进行了分析研究。
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